antonio, texas, as well as the first lady, michelle obama. >> this is a loud, loud arena. so hopefully, you can hear us better. >> i can name that tune in four notes. bill hemmer and markety mccould youan are on the floor. >> reporter: good evening. this arena is electric. the acoustics are outstanding. >> the biggest applause line so far, followed a video tribute for the late senator kennedy from massachusetts. after that, a number of references -- [inaudible], a direct reference to the 18 electoral votes in ohio. the obama team believes that 1 in 18 voters in ohio are connect to the automobile industry. i asked about the michelleobama speech and i was told it was outstanding. ann romney was speaking this night last week in tampa. expect the same tonight from the first lady. >> thank you very much. behind me, governor o'malley is speaking. let's check in. >> we will check in with market a. what do you see on the floor there? >> reporter: lots of enthusiasm. everybody excited for michelle obama's speech down here. the campaign says that her primary task will be to speak as her husband'